Home / 39,164,342.05-54,043,543.56-21,522,316.96

Finding the Fourth Proportional to 39,164,342.05, 54,043,543.56 and 21,522,316.96

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Solution

The fourth proportional to 39,164,342.05, 54,043,543.56 and 21,522,316.96 is: 29,699,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,164,342.05 : 54,043,543.56 = 21,522,316.96 : x
  2. Step 2: Convert to fraction form
    39,164,342.05/54,043,543.56 = 21,522,316.96/x
  3. Step 3: Cross multiply
    39,164,342.05x = 54,043,543.56 × 21,522,316.96
  4. Step 4: Simplify right side
    39,164,342.05x = 1,163,142,274,139,887
  5. Step 5: Solve for x
    x = 1,163,142,274,139,887/39,164,342.05
  6. Step 6: Final answer
    x = 29,699,012.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.